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    <title>ShellCheck: SC2329 – This function is never invoked. Check usage (or ignored if invoked indirectly).</title>
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    <h1>SC2329 – ShellCheck Wiki</h1>
    <a href="https://github.com/koalaman/shellcheck/wiki/SC2329">See this page on GitHub</a>
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    <h2
id="this-function-is-never-invoked-check-usage-or-ignored-if-invoked-indirectly">This
function is never invoked. Check usage (or ignored if invoked
indirectly).</h2>
<h3 id="problematic-code">Problematic code:</h3>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="SC2329.html#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="co">#!/bin/sh</span></span>
<span id="cb1-2"><a href="SC2329.html#cb1-2" aria-hidden="true" tabindex="-1"></a><span class="fu">f()</span> <span class="kw">{</span></span>
<span id="cb1-3"><a href="SC2329.html#cb1-3" aria-hidden="true" tabindex="-1"></a>  <span class="bu">echo</span> <span class="st">&quot;Hello World&quot;</span></span>
<span id="cb1-4"><a href="SC2329.html#cb1-4" aria-hidden="true" tabindex="-1"></a><span class="kw">}</span></span>
<span id="cb1-5"><a href="SC2329.html#cb1-5" aria-hidden="true" tabindex="-1"></a><span class="bu">exit</span></span></code></pre></div>
<h3 id="correct-code">Correct code:</h3>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="SC2329.html#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="co">#!/bin/sh</span></span>
<span id="cb2-2"><a href="SC2329.html#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="fu">f()</span> <span class="kw">{</span></span>
<span id="cb2-3"><a href="SC2329.html#cb2-3" aria-hidden="true" tabindex="-1"></a>  <span class="bu">echo</span> <span class="st">&quot;Hello World&quot;</span></span>
<span id="cb2-4"><a href="SC2329.html#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="kw">}</span></span>
<span id="cb2-5"><a href="SC2329.html#cb2-5" aria-hidden="true" tabindex="-1"></a><span class="ex">f</span></span>
<span id="cb2-6"><a href="SC2329.html#cb2-6" aria-hidden="true" tabindex="-1"></a><span class="bu">exit</span></span></code></pre></div>
<h3 id="rationale">Rationale:</h3>
<p>ShellCheck found a function that goes out of scope before it's ever
invoked. Verify that the function is called. It could be misspelled, or
its invocation could also be unreachable (as in
<code>f() { ..; }; exit; f</code>).</p>
<p>Note that if the example script did not end in <code>exit</code>,
this warning would not be emitted. This is because the function could be
invoked by another script that <code>source</code>s it.</p>
<h3 id="exceptions">Exceptions:</h3>
<p>ShellCheck is currently bad at figuring out functions that are
invoked via <code>trap</code>. In such cases, please <a
href="ignore.html">ignore</a> the message with a directive.</p>
<h3 id="related-resources">Related resources:</h3>
<ul>
<li>Help by adding links to BashFAQ, StackOverflow, man pages, POSIX,
etc!</li>
</ul>
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    <p style='font-size: 80%'><a href="../index.html">ShellCheck</a> is a static analysis tool for shell scripts. This page is part of its documentation.</p>
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